Unhandled RecoverStakeError paths in Nominator Pool V2 can deadlock round rotation and permanently freeze nominator funds. #24

When Elector returns RecoverStakeError, Proxy.tolk may fail to forward the error (fee mode/value mismatch), and Pool.tolk also has an effectively empty RecoverStakeError handling path that does not clean validator round state. As a result, RoundData.users can remain non-empty indefinitely, causing round rotation logic to keep the pool closed and preventing round advancement, new stakes, and processing of pending withdrawals/deposits, leading to permanent fund lockup conditions.

The issue is not considered practical because it works as intended: RecoverStakeError intentionally does not modify the state, so its potential non-delivery is not an issue. A failed stake withdrawal does not remove the stake record.